.store-container {
    width: 500px;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    margin: 50px auto;
}

.title {
    font-size: 24px;
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.arrow {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid red;
    border-radius: 50%;
    margin-left: 10px;
    position: relative;
    cursor: pointer;
    transition: background-color 0.3s ease; /* 增加过渡效果，使箭头背景变色更顺滑 */
}

.arrow::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-30%, -50%) rotate(45deg);
    width: 8px;
    height: 8px;
    border-top: 2px solid red;
    border-right: 2px solid red;
    transition: border-color 0.3s ease; /* 增加过渡效果，使箭头颜色变色更顺滑 */
}

.arrow:hover {
    background-color: red;
}

.arrow:hover::before {
    border-top: 2px solid white;
    border-right: 2px solid white;
}

.store-item {
    display: flex;
    padding: 10px;
    margin-bottom: 10px;
    background-color: #f0f8ff;
}

.store-info {
    flex: 1;
    margin-right: 10px;
}

.self-operated {
    display: inline-block;
    border: 1px solid red;
    color: red;
    padding: 2px 5px;
    margin-bottom: 10px;
}